摘要
在两种不同的温度下对3种沥青(70#、90#、SBS)进行了紫外光老化,研究了沥青在紫外光老化后的质量变化,软化点和针入度的变化以及沥青组分的变化。研究表明,在紫外光的照射下,温度的不同与沥青质量的变化有很大的关系,不管是高温还是低温,沥青的软化点大幅度的升高,针入度下降,四组分的变化则是饱和分和芳香分减少,胶质和沥青质增加。
For three kinds of asphalt （70#, 90# , SBS）, this paper studies the change of quality, the change of soften- ing point and penetration and the change of asphalt components in the two kinds of different temperature of ultraviolet aging. The results showed that, the different temperature has a big relation with the change of asphalt quality in uv ir- radiation. The results indicated some obvious differences on asphalt performances such as the penetration got smaller, soften point was raised, saturated fragrance and aromatic fraction were decreased whereas resin and asphaltene were increased.
出处
《建材世界》
2012年第6期52-54,共3页
The World of Building Materials
关键词
紫外光老化
温度
组分
asphalt aging
temperature
component
